Inflatable bathtub



FIG. 1 is a perspective view of the inflatable bathtub;

FIG. 2 is a top view of the inflatable bathtub of FIG. 1;

FIG. 3 is a bottom view of the inflatable bathtub of FIG. 1;

FIG. 4 is a front elevational view of the inflatable bathtub of FIG. 1,

FIG. 5 is a rear elevational view of the inflatable bathtub of FIG. 1, and,

FIG. 6 is a side elevational view of the inflatable bathtub of FIG. 1, the side elevational view of the inflatable bathtub taken from the side opposite of FIG. 6 being substantially identical to FIG. 6. 

The ornamental design for an inflatable bathtub, as shown and described. 